Rerurn to Romy the Cat's Site

I find an interesting local Boston company where I might test the Motor-Generator option. They manufacture exactly what I might need: Motor-Generator sets for ultimate isolation. They offer single-phase brushless synchronous Motor-Generator pair with maximum distortion of 2.5% at full load. They offer ±0.5% voltage stability and since it is synchronous thing then a very naturally-stable frequency. The thing produces 80-85 dBA noise and made to handle any inductive load.  They make small Motor-Generator sets down to 5kW that I guess might be less noisy. I like their model version that has 10HP motor and 17A generator.  There is however an interesting question how a generator would behave under load.

After a 100 load is applied or released, the output voltage might change and return to the regulation value within some time. It called voltage recovery time and in their generators it is 500 milliseconds. Sure if I have 100A generator then it would not a subject at all, but how about the small unit? If I keep the operation as I have now then I would not worry about it as all my power-handle devises are running in class A and draw constant current. However, I might not have enough power in new room for my woofer towers and it would force to use class A/B SS amp. So, what would happen when 200-300 A /B amp run strong bass serge? This would easy suck 17A from generator and the question is: how the bass would sound if the Generator sinks for 500 milliseconds. It might be not auditable at all or it might be auditable. It might be buffered by the capacitance of the amp PS. Alternatively I might run a large coil in serial with bass amps to buffer current flow (what Richard Gray's Power Company dose). Anyhow, this all need to be tested and since the guys are local I might very much do so.

The biggest problem in this test is… that PP2000 does very well that might discourage me to do any efforts in the Motor-Generator isolation. Let see how it goes… but I like to have and to know my options.

Rerurn to Romy the Cat's Site